From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Certain workloads need the ability to disable preemption completely so allow them to do that by whitelisting GEN8_CS_CHICKEN1. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Cc: Michal Mrozek <michal.mrozek@xxxxxxxxx> Cc: Tony Ye <tony.ye@xxxxxxxxx> Cc: Rafael Antognolli <rafael.antognolli@xxxxxxxxx> Cc: Jason Ekstrand <jason@xxxxxxxxxxxxxx> --- We need confirmation and acks from all three userspace components here. Especially since my impression was some are for and some were against whitelisting this one. --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 391f39b1fb26..37becdf77427 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1276,6 +1276,9 @@ static void tgl_whitelist_build(struct intel_engine_cs *engine) /* Wa_1806527549:tgl */ whitelist_reg(w, HIZ_CHICKEN); + + /* WaEnablePreemptionGranularityControlByUMD:tgl */ + whitelist_reg(w, GEN8_CS_CHICKEN1); break; default: break; -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
